L Logan New member Apr 17, 2010 #1 ok i have a 1999 kx125 that i just bought and it has a pro circuit Platinum header and what i believe is a FMF power core 2 silencer is this bad for a bike? or affect the Performance or anything like that thanks best answer =10pts
ok i have a 1999 kx125 that i just bought and it has a pro circuit Platinum header and what i believe is a FMF power core 2 silencer is this bad for a bike? or affect the Performance or anything like that thanks best answer =10pts
